Melt-spinning synthetic polymeric fibers

Details Melt-spinning synthetic polymeric fibers Melt-spinning synthetic polymeric fibers

1995-05-23

1996-11-19

Cuda, Irene

Metal working

Method of mechanical manufacture

Fluidic or fluid actuated device making

29557, B23P 1500

Patent

active

055750630

ABSTRACT:
A spin pack for spinning synthetic fibers from two or more liquid polymer streams includes a supply for at least two polymer streams to the spin pack; a spinneret having extrusion orifices; and flow distribution plate sets. The flow distribution plate sets include at least one patterned plate having edges which define a substantially regular two-dimensional geometric shape, a substantially planar upstream surface, a substantially planar downstream surface and at least one flow distribution pattern stenciled therein by cutting through. For each patterned plate, at least one boundary plate stacked sealingly adjacent thereto and having edges which define a substantially regular geometric shape, a substantially planar upstream surface and a substantially planar downstream surface. The boundary plate has cut-through holes connecting the upstream surface with the downstream surface to form at least one flow-through channel to allow fluid flow through the patterned plate but otherwise is substantially solid.

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